This type was minted either under William de La Roche, 1280 - 1287, or during the minority of Guy I de La Roche, 1287 - 1294. William I de la Roche succeeded his brother, John I, as Duke of Athens in 1280. William reversed the territorial losses of his brother's reign, extending his control over Lamia and Gardiki. He married Helena Angelina Komnene, daughter of John I Doukas, ruler of Thessaly, securing a military alliance with him. |  |